Tropical Storm Alberto (re-analyzed to a tropical storm from its initial subtropical storm categorization) was the first named storm of the 2018 Atlantic Hurricane Season. Alberto was the first of three storms to impact the NWS Mobile/Pensacola county warning area during the active 2018 season.
Alberto formed and made landfall in late May, prior to the start of the typical designated or typical hurricane season for the Atlantic Basin which runs from June 1st through November 30th each year. Pre-season storms like Alberto are not uncommon - in fact, pre-season storms occurred in 2015 (Ana in May), 2016 (Alex in January, Bonnie in May) and 2017 (Arlene in April).
More information will be added in the coming months...
Summary of all Local Storm Reports (LSRs) across the area and LSRs across the region during Tropical Storm Alberto.
Below are some of the regional impacts...
Jump to - Rainfall, Wind, Storm Surge, Tornado, Post-Tropical Cyclone Report, or Additional Information sections.
Due to where Tropical Storm Alberto made landfall - just east of our county warning area near Laguna Beach, FL - the axis of heaviest rainfall set-up across the eastern half of our county warning area. Meanwhile, locations further to the west of landfall generally received 1" or less of storm total rainfall during Alberto. The graphic to the right, courtesy of NWS Birmingham, shows the drastic gradient in 24-hour storm total rainfall amounts observed closer to the location of landfall versus further to the west (where little if any rain fell in some communities).
The highest storm total rainfall amount of 5.57" was observed near Niceville in Okaloosa County, FL with numerous reports of 4+ inches. The axis of 3-5+" of heavy rain extended north into Covington, Escambia, Conecuh, Crenshaw, Butler, and the far eastern portions of Wilcox and Monroe Counties in Alabama.
Heavy rainfall from the bands of Tropical Storm Alberto led to standing water and flooding in some areas with road closures across parts of Covington (Onycha community) and Butler Counties (Honoraville community).
The combination of saturated soils and gusty wind resulted in several reports of downed trees and power lines, especially across Butler County in AL.
The highest winds observed during Tropical Storm Alberto occurred at the coast with gusts up to 41 mph at Destin, FL and gusts up to 38 mph at the WeatherFlow station in Pensacola Bay.
A list of land and marine wind gusts (converted to mph) can be found in the table below.
STORM SURGE & COASTAL FLOODING
Official NOAA/NOS/CO-OPS tide gauges were used to measure the maximum storm surge and storm tide across the area during Tropical Storm Alberto. Two of the time series plots from the NOAA/NOS/CO-OPS tide gauges across coastal Alabama and northwest Florida can be viewed below.
Wave run-up resulted in flooding along Bienville Blvd on the west end of Dauphin Island (Mobile County) during Tropical Storm Alberto. Splash-over was also observed by one of our forecasters along the Causeway over Mobile Bay, but levels were not high enough for a Coastal Flood Advisory.
POST TROPICAL CYCLONE REPORT...SUBTROPICAL STORM ALBERTO
NATIONAL WEATHER SERVICE MOBILE AL
352 PM CDT FRI JUN 1 2018
NOTE: THE DATA SHOWN HERE ARE PRELIMINARY....AND SUBJECT TO UPDATES
AND CORRECTIONS AS APPROPRIATE.
THIS REPORT INCLUDES EVENTS OCCURRING WHEN WATCHES AND/OR WARNINGS
WERE IN EFFECT...OR WHEN SIGNIFICANT FLOODING ASSOCIATED WITH ALBERTO
OR ITS REMNANTS WAS AFFECTING THE AREA.
COUNTIES INCLUDED...BALDWIN...BUTLER...COVINGTON...CRENSHAW...
ESCAMBIA AL...ESCAMBIA FL...MOBILE...MONROE...OKALOOSA...
SANTA ROSA
A. LOWEST SEA LEVEL PRESSURE/MAXIMUM SUSTAINED WINDS AND PEAK GUSTS
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METAR OBSERVATIONS...
NOTE: ANEMOMETER HEIGHT IS 10 METERS AND WIND AVERAGING IS 2 MINUTES
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LOCATION ID MIN DATE/ MAX DATE/ PEAK DATE/
LAT LON PRES TIME SUST TIME GUST TIME
DEG DECIMAL (MB) (UTC) (KT) (UTC) (KT) (UTC)
---------------------------------------------------------------------
KDTS-DESTIN
30.40 -86.47 997.0 28/2053 330/023 28/2014 350/036 28/2005
KCEW-CRESTVIEW
30.79 -86.52 996.6 29/0003 310/020 29/0014 310/030 29/0012
K0J4-FLORALA
31.04 -86.31 996.7 29/0058 200/020 29/0309 200/029 29/0309
K79J-ANDALUSIA
31.32 -86.41 996.6 29/0356 360/016 29/0015 360/026 28/2335
KPNS-PENSACOLA REGIONAL
30.47 -87.20 1001.4 28/2130 340/019 28/2128 320/029 28/2124
KMOB-MOBILE REGIONAL
30.67 -88.24 1004.1 28/2256 350/020 28/1856 360/024 28/1856
KBFM-MOBILE BROOKLEY
30.64 -88.07 1003.9 28/2153 330/021 28/2005 330/025 28/1910
KPRN-GREENVILLE
31.84 -86.61 995.3 29/0556 020/019 29/0256 050/030 29/0440
REMARKS:
NON-METAR OBSERVATIONS...
NOTE: ANEMOMETER HEIGHT IN METERS AND WIND AVERAGING PERIOD IN
MINUTES INDICATED UNDER MAXIMUM SUSTAINED WIND IF KNOWN
---------------------------------------------------------------------
LOCATION ID MIN DATE/ MAX DATE/ PEAK DATE/
LAT LON PRES TIME SUST TIME GUST TIME
DEG DECIMAL (MB) (UTC) (KT) (UTC) (KT) (UTC)
---------------------------------------------------------------------
XCBS-CRYSTAL BEACH (DESTIN)
30.39 -86.41 I 360/016 28/1708 010/030 28/1703
10
REMARKS:
B. MARINE OBSERVATIONS...
NOTE: ANEMOMETER HEIGHT IN METERS AND WIND AVERAGING PERIOD IN
MINUTES INDICATED UNDER MAXIMUM SUSTAINED WIND IF KNOWN
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LOCATION ID MIN DATE/ MAX DATE/ PEAK DATE/
LAT LON PRES TIME SUST TIME GUST TIME
DEG DECIMAL (MB) (UTC) (KT) (UTC) (KT) (UTC)
---------------------------------------------------------------------
42012-12NM SOUTH ORANGE BEACH AL
30.06 -87.55 1002.3 28/2040 999/027 28/0153 999/029 28/0000
04/01
XFWB-CHOCTAWHATCHEE BAY (WEATHERFLOW)
30.40 -86.56 I 320/026 28/2153 320/032 28/2143
07/
XFPL-PENSACOLA BAY (WEATHERFLOW)
30.36 -87.21 1000.9 28/2117 300/027 28/1947 300/033 28/1947
05/
XMLP-PERDIDO BAY (WEATHERFLOW)
30.30 -87.51 1001.4 28/2022 340/023 28/2057 340/032 28/2052
05/
MLBA1-MIDDLE BAY LIGHT
30.43 -88.01 1002.7 28/2123 020/033 28/2353
14/01
DPIA1-DAUPHIN ISLAND AL
30.25 -88.08 1003.4 28/2300 350/021 28/1700 360/024 28/1500
14/08
REMARKS:
C. STORM TOTAL RAINFALL FROM 1200 UTC MAY 28 UNTIL 1200 UTC MAY 29
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CITY/TOWN COUNTY ID RAINFALL
LAT LON (IN)
DEG DECIMAL
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2 ENE NICEVILLE OKALOOSA FL-OK-20 5.57
30.50 -86.46
1 N SANFORD COVINGTON K79J 4.84
31.31 -86.39
2 SE NICEVILLE OKALOOSA FL-OK-3 4.82
30.50 -86.46
1 NE DIXIE ESCAMBIA TT360 4.68
31.14 -86.72
4 SE DEERLAND OKALOOSA F0856 4.59
30.71 -86.40
PLEASANT HOME COVINGTON 4.50
31.15 -86.62
RED LEVEL COVINGTON 4.44
31.40 -86.61
5 ENE FALCO COVINGTON OPNA1 4.42
31.04 -86.62
9 N GREENVILLE BUTLER 4.30
31.96 -86.59
6019 ENE CRESTVIEW OKALOOSA KCEW 4.19
30.76 -86.57
NICEVILLE OKALOOSA FL-OK-37 4.04
30.50 -86.46
GEORGIANA BUTLER 4.00
31.63 -86.74
BRATT ESCAMBIA 3.96
30.96 -87.43
VALPARAISO OKALOOSA FL-OK-2 3.42
30.51 -86.50
FLORALA COVINGTON KOJ4 3.28
31.00 -86.33
2 W RUTLEDGE CRENSHAW E2927 2.42
31.73 -86.35
2 ESE EXCEL MONROE AL-MN-4 2.40
31.42 -87.35
REMARKS: RAINFALL REPORTS ARE FROM A COMBINATION OF ASOS, COCORAHS,
OTHER MESONETS, TRAINED SPOTTERS, AND EMERGENCY MANAGEMENT.
D. INLAND FLOODING...
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COVINGTON...FLOODING WAS REPORTED ON DRY CREEK ROAD IN ONYCHA. SOME
CITY STREETS IN ANDALUSIA WERE IMPASSABLE DUE TO THE HEAVY RAIN.
BUTLER...A ROAD WAS CLOSED DUE TO FLOODING FROM THE RAIN BANDS OF
ALBERTO 4 MILES NORTHWEST OF HONORAVILLE.
E. MAXIMUM STORM SURGE AND STORM TIDE...
OFFICIAL TIDE GAUGES NOTED WITH LEADING G
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COUNTY CITY/TOWN SURGE TIDE DATE/ BEACH
OR LOCATION (FT) (FT) TIME EROSION
---------------------------------------------------------------------
MOBILE G DAUPHIN ISLAND 9999.00 1.31 28/1324 MINOR I
ESCAMBIA G PENSACOLA 9999.00 1.18 28/1600 UNKNOWN I
STORM TIDE READINGS ARE IN REFERENCE TO MEAN HIGHER HIGH WATER (MHHW)
WHICH IS USED AS AN APPROXIMATION FOR INUNDATION ABOVE NORMALLY DRY
GROUND.
F. TORNADOES...
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(DIST)CITY/TOWN COUNTY DATE/ EF SCALE
LAT LON (DEG DECIMAL TIME(UTC) (IF KNOWN)
DESCRIPTION
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G. STORM IMPACTS BY COUNTY...
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COUNTY DEATHS INJURIES EVACUATIONS
DESCRIPTION
---------------------------------------------------------------------
MOBILE 0 0 0
WAVE RUN-UP RESULTED IN MINOR FLOODING ON BIENVILLE BLVD ON THE FAR
WEST END OF DAUPHIN ISLAND.
COVINGTON 0 0 0
THE COMBINATION OF SATURATED SOILS AND GUSTY WINDS RESULTED IN THE
DOWNING OF MULTIPLE TREES ACROSS COVINGTON COUNTY.
BUTLER 0 0 0
THE COMBINATION OF SATURATED SOILS AND GUSTY WINDS RESULTED IN THE
DOWNING OF MULTIPLE TREES AND POWER LINES IN BUTLER COUNTY.
$$
Legend:
I-Incomplete Data
E-Estimated
JASON BEAMAN
Link to the PSH product online
NHC Advisory Archive
WPC Archive
NHC Tropical Cyclone Report - Tropical Storm Alberto
NOAA Tides & Currents - Highest Storm Water Levels (not available yet)
NOAA Tides & Currents - Archived Storm QuickLooks
Acknowledgements: Page created by Morgan Barry (forecaster).
LAST UPDATED: April 2019
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